<template>
  <el-breadcrumb class="app-breadcrumb" separator="/">
    <transition-group name="breadcrumb">
      <el-breadcrumb-item v-for="(item,index) in levelList" :key="item.path" v-if="item.meta.title">
        <span v-if="item.redirect==='noredirect'||index==levelList.length-1" class="no-redirect">{{generateTitle(item.meta.title)}}</span>
        <router-link v-else :to="item.redirect||item.path">{{generateTitle(item.meta.title)}}</router-link>
      </el-breadcrumb-item>
    </transition-group>
  </el-breadcrumb>
</template>

<script>
import { generateTitle } from '@/utils/i18n';

export default {

    data() {
        return {
            levelList: null
        };
    },
    watch: {
        $route() {
            this.getBreadcrumb();
        }
    },
    created() {
        this.getBreadcrumb();
    },
    methods: {
        generateTitle,
        getBreadcrumb() {
            let matched = this.$route.matched.filter(item => item.name);
            const first = matched[0];
            if (first && first.name !== 'dashboard') {
                matched = [{ path: '/dashboard', meta: { title: 'dashboard' }}].concat(matched);
            }
            this.levelList = matched;
        }
    }
};
</script>

<style rel="stylesheet/scss" lang="scss" scoped>
  .app-breadcrumb.el-breadcrumb {
    display: inline-block;
    font-size: 14px;
    line-height: 50px;
    margin-left: 10px;
    .no-redirect {
      color: #97a8be;
      cursor: text;
    }
  }
</style>
